Means for pumping lubricant



Dec. 22, 1931. H. B. SHEPPARD 1,837,590

MEANS FOR PUMPING LUBRICANT Filed Sept. 8, 1928 2 Sheets-Sheet l Jun-M0741 Dec. 22, 1931. SHEPPARD 1,837,590

MEANS EOR PUMPING LUBRICANT Jrwmo YHENRY Bmm R n ,SH A RD,

Patented Dec. 22, 1931 V i 1 37 590 "Uuif' YDf TA E"s PAT HENRY BERNARD s'rrnrrlmnior niinBinNeLAnn MEANs ron nor/[P ne runrarcanr 7 Application fil ed September a, 1928, Serial n6. %,705", a n d in Great Britain September 1o,'i 92 7. v f o This invention relates to means for pump-' screw threaded rotatable piston rod which l i ing lubricant, more particularly for lubricatis'connected to, or integrally} combined with ing bearings, cylinders and other working a drivingspindle9 mounted'in the bracket 6. parts of engines, machinery and the'like. On the driving spindle 9 is a rotatable sleeve '5 According to this invention the method of 10 carryingatitsinner end an eccentric or supplying lubricant consists incompre'ssing. cam 11 located in the chamber and'encirthe lubricant in a container through theme-V clingt-his cam is a strap 12 whichis adapted dium of a friction clutch operated by a ratchet to be reciprocated transverselyofthefchamdevice permitting the lubricant underjpres her 4 by rotation of the cam,said strap hav 10 sure to be discharged into a distributing ing alatera-l stem 13 atone side'which works chamber and causing it to be delivered under in a guide 14 provided in the base 5 and at j pressure from said distributingchamber for the other side with a stem 15 constitutinga use. F v plunger at theinlet end ofa small force'purnp v i 1 Apparatus for supplying or delivering lu- -16 housed'in the; base 5 diametricallyoppo 15 bricant in accordance with the beforemensite 'tdtheguide 14; The pump 15 is pro-' v tioned method may comprisea distributing vided with a'non return valve 17 at the' outs chamber and rotatable sleeve therein, a pump, let end which communicates with an'inlet18 a container for the lubricant, a piston in said of a distributing chamber 19, At the outer container adapted to be operated by a ratchet end of the rotatable sleeve 10a'nd keyed there'- 20 device, through the medium of a friction to byakey'20is aratchet wheel 21-and interclutch, and means for operating the pump posed'betweenthis ratchet wheel and the base and the rotatable sleeve, the'a-rrangement be- 5 is a ball thrust: washer 22. .Engaging the ing such that when a predetermined presratchet wheel 21 is a pawl "23 operated by a sure on tl e lubricant is reached, the friction lever 24 carried byan-extens'ion125 of a'col- V clutch ceases to operate the piston while the lar 26 rotatably mounted over-the-ballthrust a pump will continue to deliver lubricant to washer 22 and annular flange 27 of the ratchet the distributing chamber and the ratchet dewheel 21. Keyed to the spindle 9-is a fricvice to operate the rotatable sleeve, so that tion plate 28 held in abutment with the outer lubricant is delivered from the distributing face of'the ratchetwheel 21- by a coil spring chamber, and when thepressure'on the lu- 29, the tensiononthe spring'bei'ngefi'ectedby bricant is reduced the fric ion clutch comes lock-nuts 30; 1

into operation again, thus maintaining the 1 The'nlet end of the force pump :16'is prolubricant in the container at the vrequired vided with inlets -31. for the 'passage of lubripredetermined pressurei cant from th'e chamber 4;, the latter being in Means are provided whereby the required open'communicationwiththe adjacent open Pressure to be maintained on the lubricant end of the lubricant container 2L-= I a can be altered as required. 7 In the distributing chamber 19 .is a rotat- Referring to the drawings filed hereable sleeve'32 having a'plurality of radially with a a disposed-"ports 33 adapted to communicate 4O Fig. l is a sectional elevation of one form with the inlet l8 of thedistributing chamber. -9

of apparatus made in accordance with this Thesleeve 32 is also'provided with aplurality invention; V of delivering ports 34 longitudinallyspaced Fig. 2 is a plan; and apart and regularly staggered around its cir- Fig. 3 is a cross section on the line AB, cumference, these ports being'adapted on r0- Fig. 1. V tation-of the'sleeve 32, to register'with dis- 95 2 is a container for lubricant which may charge outlets 35 arranged in the'distributing be detachably secured by screw threads 3 in chamber 19. The discharge outlets are or the mouth "of a chamber 4; formed in a base 5 may be adapted 'for the attachmentsof suitof a bracket 6'. In the container 2 is a travable delivery pipesfor' conveying discharged 00 ersing piston 7 adapted to'be operated by a lubricant to any convenientsourcepn r.

One endof the sleeve'32 protrudes from the distributing chamber 19 whereat it is provided with a star-wheel 36 positioned so as to be engaged and thereby rotated by a lateral pin 37 projecting from the face 'of the ratchet wheel 21'. v

, The distributing chamber 19, may be at-' 'tached to the bracket 5 by bolts' 38, asseen' inFig.3. g p

The lubricant container 2 may very conveniently comprise a hollow cylinder-,ofcelluloid containing a charge of semi-solid lubricant r and encased-by an outer cylinder39 closed at the outer endby, a screwed capfilO, such construction enabling fresh charges of lllbI'I- cant to be made by recharging with the celluloid cartridge-or container full of lubricant.

, For giving; a sight'of :the lubricant inorder j to, determine when "a recharge is necessary,

I extreme end of the spindle9t f- In operatiomlthe leveFQl any sui-tablermeans in order to actuate the ratchet; wheel 21, This causes the'sleeve 10 ally. V Y .7 1;The load on thespring '29 can be altered fto the pressure required to'be-maintained 765 i i f a sight holes-41 are provided in' the outer casing 39. In the'construction il-lustrated the pistonf 7 is shownin the; position when a charge of'lubricant is required andfor'retrac'ting the pistontothe outerendiof the container, ac ha'nd lBVQEdQ is provided-at the is operated and, cam- 11- to rotate, and the cam: operating on: the straplQ efi'ects reciprocation thereof; Assuming that no pressureaof lubricant obtains in, the container 2, the friction between the ratchet and the adjacentfriction plate 28 is suflicient to rotate said friction platewhich in. turn rotates the spindle 9. Rotation of the spindle draws the piston forward against thelubricant in' the container 2 until sufiicient pressureisexe'rted on the lubricant to cause the friction plate 28 to slip.-

'- Asthen-strap"12rec1procates, the lubricant now under pressureenters the pump'l6 throughthe inlets 31 whenunco'v'ered by the plungervlf) and: on forward movement of; the

plunger lubricant 'is forced past the non-re'- turn valve'17 into the distributing chamber 19. On'the sleeve'32 being rotated through the medium otthe starwheel 36 and the pin 37, the ports 33 communicate at intervals with;

on the lubricant.-

What I claim anddesire to secure Letters Patent is r -1. Apparatus for mechanically supplying or delivering lubricant comprising a container for the lubricant, a lubricant compressing piston in said container, a lubricant IQCGlV- j I ing, and distributing member, a jpump (1 1-,

nccted 'withsaidlubricant' container and said lubricant receiving and distributing me1nber, means for operating thepump so as to pass "lubricant from. *the' container to the receiving and distributing member, frictional.

means associated, and automatically oper able, with said pump operating'means for operating the lubricant compressing piston in relation to a load on said frictional piston,

operating means, and, means for effecting discharge. of lubricant under pressure .for

use from the distributing member.

2. Apparatus for mechanically supplying or delivering lubricant compr1s1ng a r contalner for-the lubricanha lubricant compresslng piston insaid container, a" lubricant receiving and distributingmember, a pump connected with said lubricantg containerand said lubricant receiving and distributing member, means for operating the pump so-as to pass lubricant frc-m the container to the receiving and distributing member, frictional means associated, and automatically operable, with said pump: operating means for operating the lubricant compress ng plston in relation to a load on said frictional piston operating means, and; means operable through the medium of the pump operating means for effecting discharge of lubricant under. pressure for use from the distributing member.

3; Apparatusifor mechanically supplying or deliveringlubricant comprising a contain.-

er for the lubricant, a lubricant compressing piston in saidcontainer,a 'lubricant distribn uting chamber, apump located between said distributing chamber and the lubricant 0on tainer meansfor operating thepump so as to pass lubricant from the; container tothe distributing. chamberffrictional means: as-

amassed. pump operating means for operating thepiston 1n relat on-to a load on said frictional piston operating means and means for permitting discharge of lubricant.

chamber. 7 v 4 v V 4- I Apparatus v for V mechanically supplying or delivering lubricant comprising a containor for the-lubricant, a lubricant compressing" piston in said container,alubr icant distributing chamber, lubricant discharging means under pressure for use from the distributing associated with said distributingchamber, a

pump located intermediate of the lubricant container and the distributing chamber and co nmunicably' operable tosaid lubricant con- 'tainer, andsaid distributing chamber, means for operatmg the pump, frictional means associated with said pump operating means, for

operating the lubricant compressing ,lpiston in relation to a load on said frictional means, and means associated with the pump operating means for operating the lubricant discharging means to effect discharge of lubricant for use from the lubricant vdistributing chamber.

5. Apparatus for mechanically supplying or delivering lubricant comprising an openmouthed lubricant container, a lubricant compressing piston in said container, a cham-' ber adjacent the mouth of the lubricant container for receiving compressed lubricant, a lubricant distributing chamber, lubricant discharging means associated with said distributing chamber, a pump located intermediate of the lubricant container and the distributing chamber and communicably operable to said lubricant container and said distributing chamber, means for operating the pump,

frictional means associated with said pump 7 operating means for operating the lubricant compressing piston in relation to a load on said frictional means, means associated with the pump operating means for operating the lubricant discharging means to effect discharge of lubricant at several sources for use from the lubricant distributing chamber, means for operating the lubricant compressing piston independently of the pump operating means and means for varying the load on the frictional means.

6. Apparatus for mechanically supplying or delivering lubricant comprisinga base, a structure combined with said base, a lubricant container detachably secured to said structure, an open end to said container combining with an adjacent mouth in the structure to constitute a lubricant receiving chamber, a piston in the lubricant container, a

lubricant distributing chamber carried by the structure, lubricant discharging-means associated with said distributing chamber, a pump located in the lubricant receiving chamber and adapted to feed lubricant from said receiving chamber to the distributing chamber, means for operating the pump, a

friction clutch device associated therewith for operating the piston relative to a load on said frictionclutch device, means associated with the pump operating means for operating the lubricant discharging means 7 to effect delivering of lubricant at several I sources for use from the lubricant distributing chamber, means for operating the piston independently of the pump operating means and means for varying the load on the friction clutch device.

In testimony whereof, I ,afiix my signa- V H ture.

HENRY BERNARD SHEPPARD. 

